When an overweight woman attempts to look attractive by wearing tight yoga pants that are a bit too short.

The results make the legs of that woman resemble a Haggis due to being narrower at the top where the pants are and the bottom is also narrow at the foot while the rest is larger because it's not compressed in the tight yoga pants.

This isn't a medical issue.
It may be caused by fast food or any unhealthy diet but may also occur before and after child birth.

This phenomenon is popular in the mostly in the United States and United Kingdom.
And can sometimes be seen across the world wherever land whales roam the land and tight yoga pants exist at reasonable prices.
Douche example:

*whistles loudly*..Look at that.....Those are some fine haggis legs.....I'm gonna tap dat!

In a conversation:

Friend 1:Your girlfriend has a serious case of haggis legs.

Friend 2: Not as bad as yo mama!

In the street:

Excuse me mam but your haggis legs are scaring the children.
by Lardladtheturd October 3, 2014
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Helen gave me and my mate Angus the Rusty Bagpipes.
She blew a mighty ditty, but she got a little Haggis too.
by PhilMcCrackin October 8, 2008
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A person who is from scotland and is gay.
Batty as in gay and Haggis is a scottish food, which is an animal's stomach filled with animal blood, kidney, liver etc...
Person 1 - Blah, blah.....
Person 2 - Shut up you Batty Haggis!.....
by Mimi* March 15, 2009
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A skinny-fat guy in scotland, preferably wearing a kilt. Like a haggis hung in the middle of a thin rail. Skinny arms and legs, kilt, big beer gut.
Aye Hamish, ye better lay off the ale, I ken yer startin' ta look a bit like a haggis rail, ya grinchy bastard.
by Scumwaffle September 29, 2010
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A lemmon-shaped meat-filled take-out food from Aladdin's on Crown Street in New Haven, CT
Last night I eat three Aladdin's Haggis, and now my arse is killing me.

by Hairy MacFat June 6, 2006
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An imaginary animal that is seen by special types of down syndrome children. The haggis mule has been reported to capture bald men and eat them in their caves.
Oh my god! Christopher Boone just saw Jivov get eaten by a haggis mule!
by The king of hagrid May 27, 2009
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When a scotsman ejaculates and then vomits on a woman's face creating a mixture that resembles haggis.
Mr. Macscotsman gave me a haggis face last night, I was so pissed.
by The flying scotsman December 7, 2008
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